George.H

Thank you Coulomb for dragging me into reality I didn't think about a risk that DC converter could be a limiting factor in such change. With that in mind, trying to stay within DC currents limits for lower voltages will make the Axpert Max not so sexy choice for me .... too much effort for 1.5kw gain from the model I have now.

Hello guys, at home I'm currently running setup of AXPERT MKS 48V 5kW + Batrium BMS + 6x Tesla battery modules (48V, cca 30kwh). I'm pretty happy with it. As I would like to upgrade my inverter (because I need to have higher power output), I'm looking into options like Axpert Max or Victron Quattro. Victron is fine choice however double in price to Axpert. Before I spend fortune on Victron, I would like to ask if anybody have the know-how about patching the Axpert firmwares. I would need just to change low DC cut-off voltage to the lower value than original firmware allows. I need this because Tesla modules are 12S (two in series), so my cut-off voltage needs to be around 38V. My Axpert gives me 40V, which is tolerable, Axpert Max has the 42V minimum - that is too high for me. I'm a developer, I know the assembler, however I know how time consuming would be to dive in firmware without any experience how it is structured. Does anybody have a hint? I know it's probably doable, I have seen that somebody here already did much more complex stuff to the firmware than this. Many thanks. George

Hello guys, at home I'm currently running setup of AXPERT MKS 48V 5kW + Batrium BMS + 6x Tesla battery modules (48V, cca 30kwh). I'm pretty happy with it. As I would like to upgrade my inverter (because I need to have higher power output), I'm looking into options like Axpert Max or Victron Quattro. Victron is fine choice however double in price to Axpert. Before I spend fortune on Victron, I would like to ask if anybody have the know-how about patching the Axpert firmwares. I would need just to change low DC cut-off voltage to the lower value than original firmware allows. I need this because Tesla modules are 12S (two in series), so my cut-off voltage needs to be around 38V. My Axpert gives me 40V, which it tolerable, Axpert Max has the 42V minimum - that is too high for me. I'm a developer, I know the assembler, however I know how time consuming would be to dive in firmware without any experience how it is structured. Does anybody a hint? Many thanks. George